Boys' name · since 1880
Leonidas
Leonidas has 10,281 recorded births since 1880 in federal Social Security data, most heavily in 2022 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #1,187 of 45,481
- all-time among boys
- #510 of 13,930
- 2025 SSA year
- 10,281
- born since 1880
- 2010s
- peak decade
Leonidas currently ranks #510 among boys' names in America, with 10,281 babies recorded since 1880.
Social Security Administration records show Leonidas recorded 10,281 times among boys since 1880, holding rank #510 nationally today, ahead of 96% of boys, peaking in the 2010s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1880 to 2025.
- #1,187 of 45,481 all-time among boys
- #510 of 13,930 2025 SSA year
- 10,281 born since 1880
- 2010s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Leonidas ranks #1,187 of 45,481 boys' names by all-time recorded births (highest first) and #510 of 13,930 among boys' names in 2025. 10,281 born since 1880, peaking in the 2010s.
- #1,187 of 45,481
- all-time among boys
- #510 of 13,930
- 2025 SSA year
- 10,281
- born since 1880
- 2010s
- peak decade
Leonidas's 10,281 recorded births place it above 97.39% of the 45,481 boys names in the full SSA archive.
43 jurisdictions carry state-level records, led by California.
How Leonidas compares
10,281 Top 9% higher than 91% of 13,930 names currently given to boys
Based on all-time total births among currently-ranked boys names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Leonidas's all-time total is 28x the median boys name, and Liam still leads by a wide margin.
| Metric | Leonidas | Median boys name (Takari) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 10,281 | 369 | 358,536 |
| Peak-year births | 760 | 34 | 22,252 |
Leonidas's usage pattern, beyond the headline number
Leonidas splits its recorded history at 1965: 93% of all births land in the more recent half, 7% in the earlier half, a lean toward present-day use rather than a passing spike. The single quietest year was 1880 (5 births) -- compare that against the 2022 peak of 760 for a sense of just how much the name's popularity has swung.
Leonidas popularity over time
Annual U.S. births registered with the Social Security Administration · 1880–2025
- Peak year (2022)
- 760
- Annual births at peak, across 146 years of records
Leonidas by decade
2010s is the heaviest window (4,479 births, 44% of the file).
2010s was Leonidas's strongest decade.
4,479 babies received the name during that ten-year window, about 44% of all-time use.
Leonidas births by decade
Total births in each ten-year window
- 1880s 22
1880s
22 births
- 1890s 26
1890s
26 births
- 1900s 5
1900s
5 births
- 1910s 128
1910s
128 births
- 1920s 180
1920s
180 births
- 1930s 108
1930s
108 births
- 1940s 71
1940s
71 births
- 1950s 83
1950s
83 births
- 1960s 112
1960s
112 births
- 1970s 134
1970s
134 births
- 1980s 142
1980s
142 births
- 1990s 135
1990s
135 births
- 2000s 733
2000s
733 births
- 2010s
2010s
4,479 births
- 2020s
2020s
3,923 births
What this shows Peak: 2010s at 4,479 births (44% of all-time use).
How Leonidas compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 boys names closest to Leonidas's total volume
Leonidas by state
Where Leonidas concentrates geographically, total births since 1880
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 1,318 | 12.8% |
| #2 | Texas | | 1,023 | 10.0% |
| #3 | Florida | | 610 | 5.9% |
| #4 | New York | | 573 | 5.6% |
| #5 | Illinois | | 377 | 3.7% |
| #6 | Arizona | | 295 | 2.9% |
| #7 | Ohio | | 293 | 2.8% |
| #8 | Washington | | 275 | 2.7% |
1,318 of 10,281 births nationwide. Compared to a flat distribution across 43 reporting states.
Leonidas appears in 43 states. Explore state details →
Frequently Asked Questions
How popular is the name Leonidas? ▼
Where does Leonidas sit in the SSA name archive? ▼
When was Leonidas most popular? ▼
Where is Leonidas most popular? ▼
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What to do with Leonidas's data
- Leonidas's usage has stayed within range of its 2010s decade-level peak (4,479 total births) through the 2020s (3,923) -- a comparatively stable name, not a fading trend.
- California records the most Leonidass (1,318 births) -- see the full state breakdown if geography matters to your decision. California names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Leonidas
Nearby Names Like Leonidas
Names with a similar sound, spelling, or feel to Leonidas
Compare Leonidas side by side: Leonidas vs Leonard Leonidas vs Leo Leonidas vs Leon
Related Names
Names with a similar popularity rank to Leonidas
Nationwide names with similar peak year or record span
Two nationwide peer axes for Leonidas: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~2022)
Similar record span (~145 yrs)
Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.
Data Sources
Data as of August 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1880–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Leonidas draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.